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Light‐controllable polymeric material based on temperature‐sensitive hydrogels with incorporated graphene oxide
Author(s) -
Breuer L.,
Raue M.,
Kirschbaum M.,
Mang T.,
Schöning M. J.,
Thoelen R.,
Wagner T.
Publication year - 2015
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201431944
Subject(s) - lower critical solution temperature , materials science , self healing hydrogels , graphene , photopolymer , oxide , differential scanning calorimetry , absorbance , chemical engineering , poly(n isopropylacrylamide) , photothermal therapy , polymer chemistry , nanotechnology , copolymer , polymer , composite material , polymerization , chemistry , chromatography , engineering , metallurgy , thermodynamics , physics
Poly( N ‐isopropylacrylamide) (PNIPAAm) hydrogel films with incorporated graphene oxide (GO) were developed and tested as light‐stimulated actuators. GO dispersions were synthesized via Hummers method and characterized toward their optical properties and photothermal energy conversion. The hydrogels were prepared by means of photopolymerization. In addition, the influence of GO within the hydrogel network on the lower critical solution temperature (LCST) was investigated by differential scanning calorimetry (DSC). The optical absorbance and the response to illumination were determined as a function of GO concentration for thin hydrogel films. A proof of principle for the stimulation with light was performed.